From: Qingfang Deng <qingfang.deng@siflower.com.cn>
Date: Wed, 13 Mar 2024 03:48:44 +0000 (+0800)
Subject: kernel: xt_FLOWOFFLOAD: fix use of uninitialized dir variable
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=503d26fb24cf980ed6d28cb080b0f81e8ba4e72d;p=openwrt%2Fstaging%2Fblocktrron.git

kernel: xt_FLOWOFFLOAD: fix use of uninitialized dir variable

The dir variable has been used uninitialized since the port to 5.10, and
somehow this remains undetected by GCC.

Fixes: b10d6044599d ("kernel: add linux 5.10 support")
Signed-off-by: Qingfang Deng <qingfang.deng@siflower.com.cn>
---

diff --git a/target/linux/generic/hack-5.15/650-netfilter-add-xt_FLOWOFFLOAD-target.patch b/target/linux/generic/hack-5.15/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
index da60334498..ec887539d5 100644
--- a/target/linux/generic/hack-5.15/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
+++ b/target/linux/generic/hack-5.15/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
@@ -609,6 +609,8 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (!nf_ct_is_confirmed(ct))
 +		return XT_CONTINUE;
 +
++	dir = CTINFO2DIR(ctinfo);
++
 +	devs[dir] = xt_out(par);
 +	devs[!dir] = xt_in(par);
 +
@@ -618,8 +620,6 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (test_and_set_bit(IPS_OFFLOAD_BIT, &ct->status))
 +		return XT_CONTINUE;
 +
-+	dir = CTINFO2DIR(ctinfo);
-+
 +	if (xt_flowoffload_route(skb, ct, par, &route, dir, devs) < 0)
 +		goto err_flow_route;
 +
diff --git a/target/linux/generic/hack-6.1/650-netfilter-add-xt_FLOWOFFLOAD-target.patch b/target/linux/generic/hack-6.1/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
index 59a5fb4d91..1dfd556ce8 100644
--- a/target/linux/generic/hack-6.1/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
+++ b/target/linux/generic/hack-6.1/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
@@ -547,6 +547,8 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (!nf_ct_is_confirmed(ct))
 +		return XT_CONTINUE;
 +
++	dir = CTINFO2DIR(ctinfo);
++
 +	devs[dir] = xt_out(par);
 +	devs[!dir] = xt_in(par);
 +
@@ -556,8 +558,6 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (test_and_set_bit(IPS_OFFLOAD_BIT, &ct->status))
 +		return XT_CONTINUE;
 +
-+	dir = CTINFO2DIR(ctinfo);
-+
 +	if (xt_flowoffload_route(skb, ct, par, &route, dir, devs) < 0)
 +		goto err_flow_route;
 +
diff --git a/target/linux/generic/hack-6.6/650-netfilter-add-xt_FLOWOFFLOAD-target.patch b/target/linux/generic/hack-6.6/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
index cb7ac007b1..1c75a2cf3d 100644
--- a/target/linux/generic/hack-6.6/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
+++ b/target/linux/generic/hack-6.6/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
@@ -547,6 +547,8 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (!nf_ct_is_confirmed(ct))
 +		return XT_CONTINUE;
 +
++	dir = CTINFO2DIR(ctinfo);
++
 +	devs[dir] = xt_out(par);
 +	devs[!dir] = xt_in(par);
 +
@@ -556,8 +558,6 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	if (test_and_set_bit(IPS_OFFLOAD_BIT, &ct->status))
 +		return XT_CONTINUE;
 +
-+	dir = CTINFO2DIR(ctinfo);
-+
 +	if (xt_flowoffload_route(skb, ct, par, &route, dir, devs) < 0)
 +		goto err_flow_route;
 +